Cocoa Touch - Changing tex attributes?

How can I change a textview font and font size..

I've tried this but i开发者_StackOverflowt doesnt seem to change anything...

typingText.font = [UIFont fontWithName:@"Marker Felt Thin" size:64.0f];

Thanks!

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The actual name of the font is "MarkerFelt-Thin".

typingText.font = [UIFont fontWithName:@"MarkerFelt-Thin" size:64.0f];